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/*
Copyright (C) 2014 CSP Innovazione nelle ICT s.c.a r.l. (http://www.csp.it/)
Copyright (C) 2018 Matthias P. Braendli (http://www.opendigitalradio.org)
Copyright (C) 2015 Data Path
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
etisnoop.cpp
Parse ETI NI G.703 file
Authors:
Sergio Sagliocco <sergio.sagliocco@csp.it>
Matthias P. Braendli <matthias@mpb.li>
/ | |- ')|) |-|_ _ (|,_ .| _ ,_ \
Data Path \(|(||_(|/_| (||_||(a)_||||(|||.(_()|||/
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <stdio.h>
#include <unistd.h>
#include <getopt.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <string.h>
#include <cinttypes>
#include <string>
#include <regex>
#include <sstream>
#include <time.h>
#include <signal.h>
#include "etianalyse.hpp"
#include "dabplussnoop.hpp"
#include "utils.hpp"
#include "etiinput.hpp"
#include "figs.hpp"
#include "watermarkdecoder.hpp"
#include "repetitionrate.hpp"
#include "figalyser.hpp"
using namespace std;
static void handle_signal(int)
{
quit.store(true);
}
#define no_argument 0
#define required_argument 1
#define optional_argument 2
const struct option longopts[] = {
{"analyse-figs", no_argument, 0, 'f'},
{"decode-stream", required_argument, 0, 'd'},
{"filter-fig", required_argument, 0, 'F'},
{"help", no_argument, 0, 'h'},
{"ignore-error", no_argument, 0, 'e'},
{"input", required_argument, 0, 'i'},
{"input-fic", required_argument, 0, 'I'},
{"num-frames", required_argument, 0, 'n'},
{"statistics", required_argument, 0, 's'},
{"verbose", no_argument, 0, 'v'},
};
void usage(void)
{
fprintf(stderr,
"Opendigitalradio ETISnoop analyser %s compiled at %s, %s\n\n"
"The ETISnoop analyser decodes a RAW ETI file and prints out\n"
"its contents in YAML for easier analysis.\n"
"\n"
"It can also read a FIC dump from file.\n"
"\n"
" http://www.opendigitalradio.org\n"
"\n"
"Usage: etisnoop [options] [(-i|-I) filename]\n"
"\n"
" -i the file contains RAW ETI\n"
" -I the file contains FIC\n"
" -v increase verbosity (can be given more than once)\n"
" -d N decode subchannel N into .msc file and if DAB+, decode to .wav file\n"
" -s <filename.yaml>\n"
" statistics mode: decode all subchannels and measure audio level, write statistics to file\n"
" -n N stop analysing after N ETI frames\n"
" -f analyse FIC carousel (no YAML output)\n"
" -r analyse FIG rates in FIGs per second\n"
" -R analyse FIG rates in frames per FIG\n"
" -w decode CRC-DABMUX and ODR-DabMux watermark.\n"
" -e decode frames with SYNC error and decode FIGs with invalid CRC\n"
" -F <type>/<ext>\n"
" add FIG type/ext to list of FIGs to display.\n"
" if the option is not given, all FIGs are displayed.\n"
"\n",
#if defined(GITVERSION)
GITVERSION,
#else
VERSION,
#endif
__DATE__, __TIME__);
}
int main(int argc, char *argv[])
{
struct sigaction sa;
memset( &sa, 0, sizeof(sa) );
sa.sa_handler = handle_signal;
sigfillset(&sa.sa_mask);
sigaction(SIGINT, &sa, NULL);
int index;
int ch = 0;
string file_name("-");
bool file_contains_eti = false;
bool file_contains_fic = false;
eti_analyse_config_t config;
while(ch != -1) {
ch = getopt_long(argc, argv, "d:efF:hi:I:n:rRs:vw", longopts, &index);
switch (ch) {
case 'd':
{
int subchix = atoi(optarg);
config.streams_to_decode.emplace(std::piecewise_construct,
std::make_tuple(subchix),
std::make_tuple(true)); // dump to file
}
break;
case 'e':
config.ignore_error = true;
break;
case 'f':
config.analyse_fic_carousel = true;
break;
case 'F':
{
const string type_ext(optarg);
const std::regex regex("^([0-9]+)/([0-9]+)$");
std::smatch match;
bool is_match = std::regex_search(type_ext, match, regex);
if (not is_match) {
fprintf(stderr, "Incorrect -F format\n");
return 1;
}
const string type_str = match[1];
const int type = std::atoi(type_str.c_str());
const string extension_str = match[2];
const int extension = std::atoi(extension_str.c_str());
fprintf(stderr, "Adding FIG %d/%d to filter\n", type, extension);
config.figs_to_display.emplace_back(type, extension);
}
break;
case 'i':
file_name = optarg;
file_contains_eti = true;
break;
case 'I':
file_name = optarg;
file_contains_fic = true;
break;
case 'n':
config.num_frames_to_decode = std::atoi(optarg);
break;
case 'r':
config.analyse_fig_rates = true;
config.analyse_fig_rates_per_second = true;
break;
case 'R':
config.analyse_fig_rates = true;
config.analyse_fig_rates_per_second = false;
break;
case 's':
config.statistics = true;
config.statistics_filename = optarg;
break;
case 'v':
set_verbosity(get_verbosity() + 1);
break;
case 'w':
config.decode_watermark = true;
break;
case -1:
break;
default:
case 'h':
usage();
return 1;
break;
}
}
if (file_contains_eti and file_contains_fic) {
fprintf(stderr, "-i and -I are mutually exclusive\n");
return 1;
}
else if (file_contains_eti or file_contains_fic) {
FILE* fd;
if (file_name == "-") {
fprintf(stderr, "Analysing stdin\n");
fd = stdin;
}
else {
fd = fopen(file_name.c_str(), "r");
if (fd == NULL) {
perror("File open failed");
return 1;
}
}
if (file_contains_eti) {
config.etifd = fd;
}
else {
config.ficfd = fd;
}
ETI_Analyser eti_analyser(config);
eti_analyser.analyse();
fclose(fd);
}
else {
fprintf(stderr, "Must specify either -i or -I\n");
return 1;
}
}
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